Tunneling-machine.



1. COOK.

TUNNELING MACHINE. APPLICATION man JULY 30. i914.

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Patented m5221916.

viren s'rarns .anun einen JOHN W. COOK, OF MIAMI, FLORIDA, ASSIGNOR OF ONE-THIRD TO GEORGE WAIJDECE,

` OF MIAMI, FLORIDA. v

i 'Tourismus-MACHINE. i l

Specification ofhetters Patent.

Patented leb, 1913.

Application led July 30, 1914. Serial No. 854,135.

To all whom 'it may concern.'

tion of a simple and eiiicient machine for actuating theV boring head and also conveying the material from'the boring head after the material has been cut thereby.

Another object of the invention is the production of a simple and efficient means forv simultaneously rotating and reciprocating the cutting head for the purpose of constituting an efiicient boring mechanism.

` With these and other objects in View this invention consists of certain novel combinations, constructions, and arrangements of parts as willfbe hereinafter fully described and claimed.

Tn the accompanying drawings .Figure 1 is aside elevation of the machine partly broken away, Fig. 2 is an enlarged bottom plan view partly in section of the boring head carrying frame, and Fig. 3 is a longitudinal central section through the carrying frame and parts attached thereto.

By referring to the drawings it will be seen that l designates a supporting body for the tunneling mechanism which is supported y upon the usual truck 2, which truck travels upon the rails 3.

Mounted upon the supporting body 1 in any suitable manner .and rotatable thereon is a crane or derrick 4 which may be of any preferred structure, and is designed foi' supporting my improved form of tunneling device. A driving shaft 5 is rotatably mounted upon the crane 4 and is driven from any suitable source and carries a beveled gear 6.

at its forward end which meshes with a beveled gear 7 carried by a supporting shaft 8. This gear 7 also meshes with a gear 9 carried by the head actuating shaft 10. Aforward head carrying frame 11 is pivotally mounted upon the shaft 8 as illustrated clearly in Fig. 2. This forward head carrying frame 11 may be. raised and lowered since the same is pivotally mounted uponV the shaft 8. Gables 12 pass over the guiding pulleys 13, said pulleys'being carried by the forward ends of the crane or derrick 4 and below the pulleys 14 carried by-'the pulley carrying .arms 15 of the forward head boring frame and areA securedV to the forward-end of. the head boring frame to facilitate the raising and lowering of the frame by means of the cables 12.

The forward head boring frame comprises a plurality of parallel beams which are reing head 26, .which head carries a plurality of digger fingers 27 being connected to the head 26 by means of the connecting plates 28. Aband or collar 29 is carried by the head26 and this band is connected to the reciprocating rods 30 which nare in turn connected to the crank arms 31. These arms 31 are connected to the crank shaft 32, which crank shaft is driven through the means of a gear 33 on the shaft 10 which meshes with a gear 34 on a stub shaft 35, the outer end of the shaft 35 having.a cog 36 thereon which meshes with a pinion 37 fixed to the crank shaft 32, said cog and pinion being exteriorly of the frame 11. The head 25v is supported upon a disk 38, which disk is provided with an aperture 39 for the purpose. of allowing the cut material to-pass through the. cutting head and be delivered to the forward conveyer belt 18 carried by the forward digger head carrying frame.

The operation'of the device is as follows: The vbody 1 is brought to the desired position upon the rails 3 and the frame 11 is swung to the position shown in Fig. 1, and the crane 4 swung to the desired angle relative' to the body 1. After thecrane' 4 and the body 1 are in the desired position and the shaft drivin engine started, the shaft 5 l will rotate the s aft 10 above described 4and the head 25 carried thereby. The cu fingers 27 willalso be reciprccctcd throng 65 inforced by suitable braces. conveyer i the head' due Yao ' comprising a above described, and the cables 12 will be operated to 'cause the cutting head to be slightly elevated while accomplishing the cutting function described therefor. In the meantime the conveyer 18 will be caused to travel through the medium of the sprocket chains 20 and 19 and the cut material which the head 25 will be forced through is cut by the aperture 39 onto the conveyer belt 18 and is carried by the conveyer belt 18 to any suitable point.

*As is illustrated in Fig. 1, the crane 4 carl ries depending arms 40, said arms carrymg a roller 41 illustrated in dotted lines in Fig. 1 which extends transversely under the conveyer frame 16 for limiting the downward movement thereof.

Cutting blades 42 are carried by the cutting head 25, and a-web portion 43 extends throughl the cutting blades 42 as is illustrated in Fig. 2. It should be understood that the cutting fingers 27 project through the cutting blades 42 and that the cutting head 25 is provided with openings 44 to allow the passage of dirt or cut material therethrough to be delivered upon the conveying belt 18. The reciprocatin head 26 comprises a plurality of diverglng arms, which arms support the cutting fingers 27. These diverging arms extend in the rear of the cutting blades 42 carried by the rotating head 25.

Having thus described the invention what is claimed as new, is y 1. A machine of the class described com prising a support, a cuttin frame 'carried thereby, a cutting head, vsald cutting head plurality of diverging cutting plates, a plurality of cutting fingers reciprocallymounted upon said cutting head, a reciprocating head supporting said fingers and comprising a plurality of diverging spaced arms, said cutting head provided Copies of this patent may be obtained for to the operating mechanismv reciprocate ing a tapered ve cents each,

with an opening formed inthe rear thereof and a conveyer positioned in the rear of said cutting head Y for conveying cut material from said cutting head.

2. A rotary cutting device, comprising the combination with a disk, and means to carry the same,

tools into and out of engagement with anobject.

3. A cutting device, comprising a disk, a cutter head, means to rotatably attach the cutter head to the disk, a tool holder within said cutter head, a plurality of cutting tools carried by the tool holder, means to guide said cutting tools, a grooved head on the tool holder, a collar engaging the groove in to extend `through the sockets inl said head, means attached to said collar to said tool holder, and means to rotate the cutter head and tool holder independently of the disk.

4. In a cutting device,A the combination with -a disk having a discharge opening therein, of `a hollow cutter head, a tool holder reciprocatingly mounted within said cutter head, said tool holder comprising integral arms, said arms having-their outer faces tapered, a head on the tool holder havend, and means engaging said head to operate the tool holder. y

In testimony whereof l hereunto aihx my signature in presence of two witnesses.

JOHN W. COOK.

Witnesses:

J. WV. EVAN, MARY A. NALL.

by addressing the Commissioner of Patents,

Washington, 1)..0. 

